Yes, you can fly to Italy at 17, but you are categorized as a "minor" and may face specific documentation requirements depending on whether you are traveling alone or with others. If you are 17 and traveling unaccompanied, most airlines (including Alitalia/ITA and major US carriers) will allow you to fly as an adult without a dedicated "Unaccompanied Minor" escort, but you must carry a notarized consent form signed by both parents. This form should explicitly state that your parents allow you to travel to Italy alone and should include their contact details and a copy of their IDs. Italian border police are particularly vigilant about child protection; while the legal age of "unaccompanied" travel without any form is 14 for Italian citizens, for international visitors, having the notarized "Minor Travel Consent" is the "pro-tip" to avoid being detained or questioned at customs in Rome or Milan until your parents can be reached.